Who Pays the Retest When a Bulk Batch Fails
When a bulk batch fails primary testing, the mill pays for accredited retests if counter-sample analysis confirms non-compliance under contract terms.
EN ISO 17025
Laboratory Competence Standard
International requirements for the calibration and testing of equipment ensure that technical facilities produce valid and reliable results. The en iso 17025 accreditation confirms that a laboratory has the technical staff, equipment, software and management systems necessary to perform specific textile tests. It covers everything from the handling of test specimens to the reporting of final data.
This standard provides a framework for mutual recognition of test results between different countries.
Management System
Operational procedures must be documented and followed strictly to maintain this certification. The laboratory must implement a system for tracking the calibration of every scale, oven and tensile tester. It also requires a process for identifying and correcting errors in the testing workflow.
Internal audits and periodic reviews by external bodies verify that the facility continues to meet the requirements. This structured approach reduces the risk of human error and ensures that the data provided to clients is accurate.
Technical Requirement
Staff proficiency is a central pillar of the standard. Every technician must demonstrate they can perform the tests in their scope correctly and consistently. The laboratory must also participate in proficiency testing programs where they compare their results with other accredited facilities.
This benchmarking proves that the en iso 17025 compliant lab is operating at a globally recognized level of precision. If a lab fails to produce results within the expected range, they must investigate and fix the problem immediately. This commitment to accuracy is why major retailers only accept test reports from accredited sites.
Data Integrity
Reporting of results must be clear and include all the information necessary for the interpretation of the test. The certificate of analysis should state the measurement uncertainty for each value. This transparency allows the buyer to make informed decisions about the quality of their goods.
It protects the laboratory from claims of bias.